Yan Luo and Meng Yao glanced at each other and the former answered with a smile, "Of course we are! Although it is dangerous, we still usually go there. Let's go together tonight."

His approval encouraged Zhang Yan a lot. After all, it was better for him to be go with someone.

As the only ghost city in the Renhuang Realm, the Fengdu City possessed several places of interest, so they three spent time hanging out in the city.

Though unexposed to the sunlight, the city was still brightly lit. The street was decorated with a lot of torches and crystal lamps that could be illuminated. Normal to seen in the grant families, such crystal lamps could last for a long time, extreme to a hundred years.

However, the light emitted by them was milky white, not as bright as the sunlight, but much stronger than the torches. The whole city was like a paradise under such lights, giving people a very warm feeling.

By midnight, they three had already come to the foot of the North Mountain. Full of the gloomy message, the dark mountain was like a beast opening its mouth, intending to swallow people coming, which scared those timid to not walk into it.

Yan Luo and Meng Yao had been here several times. As local people, they were quite familiar with this city. Before they entered it, they had to advise Zhang Yan on some dos and don'ts.

Yan Luo suggested, "We shouldn't be apart and should be fast. There are only two hours! No matter if we find out the stone or not, we should go out within two hours! And we can continue the next day! But if you do not get out in time, you will be lost forever in the fog! Even if it scatters the next day, you will disappear along with it too!"

Zhang Yan nodded seriously, "Okay! I will follow you and do what do you tell me to do."

Yan Luo also nodded, "You must follow us. We wait till the black fog to scatter and rush to the mountain. After so many years of exploration, all the anti-stones at the mountain foot have already been picked up. So, we can only climb up. The closer we were to the top of the mountain, the more possibility to get the stone. But we must count the time to ensure that we can return within two hours."

The midnight fell after a while and those dense black fog suddenly disappeared, revealing the trees on the mountain. The trees were very strange, with only trunks, no leaves, as if dead.

"Let's go!"

As the fog dissipated, Yan Luo immediately ran out with a crystal lamp in his hand, followed be Zhang Yan and Meng Yao, with also a lamp respectively.

While running, Zhang Yan wondered, "Why the trees are all dead? Reasonably, there should be no trees cause no sunshine here."

Meng Yao explained, "They are not dead, but specially born like this. We l call them Black Tree, because they are always black. As for why they exist, I don't know either. There are a lot of mysteries in the world."

Zhang Yan did not continue to ask, but followed the pace of Yan Luo and quickly ran to the top of the mountain.

Meng Yao advised, "Don't just running! We should pay attention to our feet meanwhile. Maybe we can pick a stone before we arrive at the top."

The anti-soul stone was unique like purple crystal, with variety of sizes and shapes. Used for making weapons to protect souls, it could only be found in the Fengdu City and was very expensive. The difficulty of getting it forced its price to rise year by year. But its effect was limitedit is useless for warriors above the Martial Arts State, so it became less and less popular and fewer and fewer people would venture to find it now.

They three were still running up under the leadership of Yan Luo. About an hour later, Yan Luo suddenly stopped and turned to Zhang Yan, "I think it is deep enough here. Hurry up searching for it!"

"The time was confined and let's separate, but don't leave the sight of each other!" Yan Luo warned while counting the time.

Zhang Yan immediately lowered his head and quickly sought around. But there were many stones on the ground and it was difficult for him to find the purple ones.

They had been finding for nearly ten minutes and suddenly, Yan Luo shouted, "Let's go back and continue tomorrow! It's already a bit late!" He ran down the mountain.

When Zhang Yang was about to leave with him, the Purifying Lotus sounded, "Wait! Don't go down! Believe me, the fog is useless for you! And a treasure was waiting for you on the mountaintop. Let's go!"

Zhang Yan nodded, "Well, I believe you this time! My life is on you now. If you cheat me, we will both die here."

"Don't worry. How can I let you die? You are the one I chose to train to be an immortal!" It replied in confidence, "The treasure is of great use to you!"